21022012010131 has 4 divisors (see below), whose sum is σ = 22933104011064. Its totient is φ = 19110920009200.

The previous prime is 21022012010101. The next prime is 21022012010159. The reversal of 21022012010131 is 13101021022012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21022012010131 - 2⁵ = 21022012010099 is a prime.

It is a super-2 number, since 2×21022012010131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022012010101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955546000450 + ... + 955546000471.

It is an arithmetic number, because the mean of its divisors is an integer number (5733276002766).

Almost surely, 2^{21022012010131} is an apocalyptic number.

21022012010131 is a deficient number, since it is larger than the sum of its proper divisors (1911092000933).

21022012010131 is a wasteful number, since it uses less digits than its factorization.

21022012010131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911092000932.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21022012010131 its reverse (13101021022012), we get a palindrome (34123033032143).

The spelling of 21022012010131 in words is "twenty-one trillion, twenty-two billion, twelve million, ten thousand, one hundred thirty-one".